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Colorado State University logo

Colorado State University

🇺🇸 United States

The ASN (Autonomous System Number) is a unique number assigned to an autonomous system, used to identify the network. ASN

AS12145

The RIR (Regional Internet Registry) is the organization responsible for managing ASN allocation in a specific region. RIR

ARIN

The type of ASN. Can be business, isp, hosting, government, or education. Type

education

Website

colostate.edu

Related ASNs have the same name or website. Related

AS36691

IPv4 CIDRs

3

IPv4 addresses

82176

IPv6 CIDRs

0

IPv6 addresses

0

Upstreams are networks that provide transit to this ASN. Upstreams (1)

AS14041 University Corporation for Atmospheric Research logo University Corporation for Atmospheric Research

Downstreams are networks that receive transit from this ASN. Downstreams (3)

AS54060 Poudre School District R-1 logo Poudre School District R-1
AS54669 Larimer County Government logo Larimer County Government
AS394748 City of Fort Collins logo City of Fort Collins

Peers are networks that exchange traffic with this ASN. Peers (5)

AS14041 University Corporation for Atmospheric Research logo University Corporation for Atmospheric Research
AS31991 Platte River Power Authority logo Platte River Power Authority
AS394748 City of Fort Collins logo City of Fort Collins
AS54060 Poudre School District R-1 logo Poudre School District R-1
AS54669 Larimer County Government logo Larimer County Government

IPv4 CIDRs (3)

129.19.0.0/18
129.19.3.0/24
129.82.0.0/16

IPv6 CIDRs (0)

Location

City

Fort Collins

Country

🇺🇸 United States

Coordinates

40.58526, -105.08442

Timezone

America/Denver

We transparently share the source used to determine a likely location for this IP address. Source

whois

Abuse

Email

dns.admin@colostate.edu

Phone

+1-970-491-1958

Query via the API View API documentation 

curl iplib.re/AS12145

JSON response

{
  "network": {
    "rir": "ARIN",
    "asn": 12145,
    "name": "Colorado State University",
    "type": "education",
    "website": "colostate.edu",
    "related": [
      36691
    ]
  },
  "connectivity": {
    "upstreams": [
      14041
    ],
    "downstreams": [
      54060,
      54669,
      394748
    ],
    "peers": [
      14041,
      31991,
      394748,
      54060,
      54669
    ]
  },
  "location": {
    "latitude": 40.58526,
    "longitude": -105.08442,
    "country": "US",
    "city": "Fort Collins",
    "source": "whois",
    "timezone": "America/Denver"
  },
  "abuse": {
    "email": "dns.admin@colostate.edu",
    "phone": "+1-970-491-1958"
  },
  "ipv4": {
    "ranges": [
      "129.19.0.0/18",
      "129.19.3.0/24",
      "129.82.0.0/16"
    ],
    "cidrs": 3,
    "ips": 82176
  },
  "ipv6": {
    "ranges": [],
    "cidrs": 0,
    "ips": 0
  }
}